MLA
Letter from an Unknown Soldier (Lynchburg, Virginia), to His Wife and Children - June 14, 1862. 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 74. https://digital.library.emory.edu/purl/4988gthtvs-cor.
APA, 6th edition
Letter from an unknown soldier (Lynchburg, Virginia), to his wife and children - June 14, 1862 (Box 6, Folder 74). (1862). [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4988gthtvs-cor.
Chicago
“Letter from an Unknown Soldier (Lynchburg, Virginia), to His Wife and Children - June 14, 1862.” Letters (correspondence). Civil War Collection, 1862. Box 6, Folder 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4988gthtvs-cor.